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发明名称
PRIVATE AUTOMATIC BRANCH EXCHANGE
摘要
申请公布号
GB8422335(D0)
申请公布日期
1984.10.10
申请号
GB19840022335
申请日期
1984.09.04
申请人
LAKE ELECTRONIC TECHNOLOGIES LTD
发明人
分类号
H04M3/46;H04M19/00;H04M19/02;H04Q3/62
主分类号
H04M3/46
代理机构
代理人
主权项
地址
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